SELECT * FROM v$pgastat;
impdp system/manager \ DIRECTORY=data_pump_dir \ DUMPFILE=export.dmp \ LOGFILE=debug_imp.log \ TRACE=480300,480301,480302 \ EXCLUDE=STATISTICS \ TABLE_EXISTS_ACTION=REPLACE
Most ORA-39126 block 71 errors are known bugs fixed in newer quarterly release updates. Ensure both your source and target environments are patched to the latest RU level. Check : : Migration from Oracle 12c to 19c
Example:
Similar errors have occurred when the database cannot access the temp data file ( ORA-01157 ) referenced in the Data Pump worker. Check : SELECT * FROM dba_datapump_jobs
: Migration from Oracle 12c to 19c. impdp fails with:
ORA-01653: unable to extend table SYSTEM.SYS_EXPORT_TABLE_01 by 1024 in tablespace USERS verifying the DBMS_METADATA package
When importing into a target table with a different definition than the source:
While the ORA-39126 worker error is intimidating, it is rarely a sign of irreparable corruption. By focusing on excluding system schemas, verifying the DBMS_METADATA package, and ensuring compatibility between source and target, this error can typically be resolved.
SELECT * FROM dba_datapump_jobs; SELECT * FROM dba_datapump_errors WHERE job_name = 'YOUR_JOB_NAME';
If the standard impdp continues to fail at the same point, try a . Instead of importing the entire dump file at once, break it down: Import the Metadata only ( CONTENT=METADATA_ONLY ). Import the Data only ( CONTENT=DATA_ONLY ).